Formules : Différence entre versions
De TravauxIndse
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* <math> sin(a+b) = sin(a)cos(-b) – cos(a)sin(-b) </math> | * <math> sin(a+b) = sin(a)cos(-b) – cos(a)sin(-b) </math> | ||
* <math> sin(a+b) = sin(a)cos(b) + cos(a)sin(b) </math> | * <math> sin(a+b) = sin(a)cos(b) + cos(a)sin(b) </math> | ||
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+ | =====5. <math> tan(a-b) = \left ( \frac{tan(a) – tan(b)} {1 + tan(a)tan(b)}\right ) </math>===== | ||
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+ | =====6. <math> tan(a+b) = \left ( \frac{tan(a) + tan(b)} {1 - tan(a)tan(b)}\right ) </math>===== |